35+ Brown Spots On Lettuce Plants. Many aerogardeners report little brown spots on some of the leaves in the salad greens seed kit. Browning caused by bacterial rots is a problem of spacing and airflow.
This fungus comes from the spores of wet plant debris. If it is the ornamental type banana plant once it grows to about 2 feet it will lose all those beautiful spots. Small red to brown spots on lower leaves, usually on underside of midrib which may expand rapidly causing the leaves to rot;
The lettuce plant can vary greatly in size, shape and leaf type but generally, the leaves of the plant form a dense head or loose rosette.
The lettuce plant can vary greatly in size, shape and leaf type but generally, the leaves of the plant form a dense head or loose rosette. It was first reported in the u.s. This is a red leafed lettuce just starting to show its colors. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds.